On 12.08.18 20:50, Thomas Kristensen wrote:
Subject: Timed out while sending end of data -- message may be sent more than once
I got this strange problem with postfix 3.1.0. I got this one server that doesn't get all the mails, queued for it. Some mails gets the error in subject. And if I do a tcpdump on the tcp stream I see this everytime:
[...]
As you can see the stream stops before the last mimepart is done. This is captured with tcpdump on the server with postfix 3.1.0 This is only a problem with about 5-10% of the delivers to this one host. We got about 40-50000 messages in and out, to many servers, everyday and only see this problem with one host we try to deliver to.
the host may have problem, or just scans the mail for too long. Is the smtp_data_done_timeout default 600s? what are the timestamps in the tcpdump? does the timeout happen after those 600 seconds? -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. They that can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety. -- Benjamin Franklin, 1759
